2023 Fiscal Year Final Research Report
Nanomechanical Analysis of VUV-irradiated polymeric materials for photo-activated bonding
| Project/Area Number |
21H01635
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 26030:Composite materials and interfaces-related
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
一井 崇 京都大学, 工学研究科, 准教授 (30447908)
宇都宮 徹 京都大学, 工学研究科, 助教 (70734979)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | 原子間力顕微鏡 / 高分子材料 / 真空紫外光 / 接合 / ナノ力学 |
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| Outline of Final Research Achievements |
The surface mechanical properties of polymeric materials irradiated with vacuum ultraviolet (VUV) light were analysed by atomic force microscopy (AFM).
By combining force curve measurements using static mode AFM and surface viscoelasticity measurements using dynamic mode (AM-FM mode), an increase in the elastic modulus at the topmost surface of the sample and an increase in the adhesion force inside the sample (~ 10 nm) were successfully detected. Based on these results, we proposed a model for the reaction of VUV light on the surface of polymeric materials.
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| Free Research Field |
表面工学
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| Academic Significance and Societal Importance of the Research Achievements |
VUV光活性化接合は，接着剤を必要としない高分子材料の接合技術であり，高分子材料最表面のみを光加工することから，マイクロスケールの構造体に対しても構造を破壊せずに接合できる．一方で，その接合メカニズムには不明な点が多かった．本研究成果は，接合メカニズムについて重要な知見を与えるとともに，VUV光照射されたようないわば未知な高分子材料について，その力学物性計測手法として一つの指針を提供する．
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